Bicycle frame



FIG. 1 is an upper perspective view of a bicycle frame in accordance with the present invention;

FIG. 2 is a lower perspective view of a bicycle frame shown in FIG. 1;

FIG. 3 is a side view of the bicycle frame;

FIG. 4 is a top plan view of the bicycle frame;

FIG. 5 is a bottom plan view of the bicycle frame;

FIG. 6 is a rear view of the bicycle frame; and,

FIG. 7 is a front view of the bicycle frame. 

What is claimed is the ornamental design for a bicycle frame, as shown and described. 